Remove 3M automotive foam tape (double sided)

This works pretty well if the tape isn’t inside a mold and on a flat surface. Important to note, that this technique should not be used on paint that will be visible. The sawing will leave marring in the paint. This is not of concern underneath this particular spoiler.

Goo Gone liquid - https://amzn.to/40SsRu8
WD-40 2 pack - https://amzn.to/3uv7KC9

Alternatively, you can use a rubber wheel on a drill to remove adhesive on paint that is visible.

https://amzn.to/46wfuRI

Edit: "haha credit card is visible." If you are going to troll, at least watch the video and turn the sound on.